Clutch.



A. LANZDORF.

CLUTCH.

APPLICATION FILED APR. 6. l9l4.

1,157,789.V Patented oct. 26, 1915.

2 SHEETS-SHEET l.

A. LANZDORF.

CLUTCH.

APPLICATION FILED Ams. I9I4.

1 1 57,789. PaIenIed OCI. 26, 1915.

l 147 ig. 5

2 SHEETS-SHEET 2.

l larly Ifor automobile purposes, of the typeA AKDOLF LANZDORF, 0F VIENNA, AUSTRIA-HUNGARY.

y CLUTCH.

To all 'whom z'tfmay concern Be it known that I, AnoLF LANZDORF, re-

siding at Vienna, XVIII, in Austria-Hungary, have invented certain new -and useful Improvements in Clutches, of which thefollowing is a specification.

This invention relates to clutches,'particu wherein a coupling sleeve is arranged between two conical clutch members, and the invention-'consistsv in using, in a 'clutch .of this type, a sleeve having series of slits overlapping. leach "other, as will beldescribed l hereinafter, so that the sleeve'is elastic and'.

that when the clutch-is 'thrown vinto engagement thesleeve canl expand and the friction gradually increases', in a manner precluding excessiveierceness of grip. y y g The invention is villustrated 1n theI accompanying drawings, in which Figures 1, 2 and .3; are longitudinal sections showing three shaft, but is axiallymovable. To one-end of" Fig. i.

forms of construction; Fig. 4 is anl elevation,

to a larger scale, showing the sleeve used inv the construction shown in Fig. 1 Figs. 5 and 6 show modified forms of thesleeve that the shaft l is rotated by the driving the sha-ft 1 is fixed a hollow cone 2, embracing the end of the shaft 3 to be driven, which is loose therein. The shaft 3 has fixed to it a 35v fly-wheel 4 of drum shape, toward which the base of the -cone is directed. The cone 2 is surrounded by a hollow cone 5, concentric therewith, having a flange 6 fixed by bolts 7 to the pulley 4. Between the cones 2 and 5 there vis a couplin A sleeve 8; shown sepa.

rately inFig. 4, t is part'S being also of conical shape andhaving aA flange 9 at its.

base. The said flange 9 enters the annular space 10 between'the iia'nge andthe flywheel,'and dogs 11 project from the flange 5) into radial grooves12 formed-in the web of the fly-wheel, so'that'heasleeve 8 cannot rotate in relation to thvii'y-wheehfbut that` v the two parts are engaged to rotate together.

The sleeve 8 has two series' of straight slits 13 and 14. Y These two seriesoverlapeach other, that is to say, the slits formingeach series extend so'me distance between the. slits forming the other series.. The slits 13 extend to one end of the sleeve, .and the slits lattothe other. On the sleeve the slits ter- Specication of Letters Patent.

Application led April 6, 1914. Serial o. 829.975.

. 2. A collar 2() on the shaft l is thrust by Referring in the first instance to Fig. 1.,r 1 designates a shaft, which is connected toa driving shaft, not shown, in such manner Patented oet. 26, 19'1 i .minat'elin holes`15and 16 respectively. By

reason of these slits the" sleeve has elasticity which allows of expansion alongf a line partly represented by the dot and dash line in Fig. 4, the said line extending all around f the sleeve. The cone 5 has a lining of asbestos, textile fabric or other elasticmaterial, Y

the purpose of which Lis to limit the expansion allowed by the elasticity imparted to the'sleeve 8.- A helicalspring 18 surrounding theshaft 3 presses the c one 2 into the sleeve 8, thus establishing or increasing thefriction between` them. The shaft 1 is embraced. by a truncated cone 19 having' a .A lilniteiiJ sliding movement thereon, but'engaged torotate with the shaft. The cone 19- tapers in the opposite direction to the cone the spring 18 against the smaller face of the lcone 19. The latter is surrounded by an internally 'coned ring 22, which is. fixed to the framework 21fvby screws 21X, thesaidring having a lining 23 of' asbestosor the like..

v'Between this lining and the cone 19 'there is ya coupling sleeve 21 similar 1n construction 'to the sleeve S. The flange 25 of the sleeve 24fisconl`iected to the ring 22 by bolts 25 which pass loosely through radial slots-'26 in -thegfangd so `that the two parts rotate to- 'get-lieti. The cone 19 has an extension" or boss-'pontile shaft 1, grooved for engagement Withx'aclutch lever 29 pivoted at V28, whereb the cone 2in the same direction'.` In-.the

course of thismovement .the-.cone 2 gradu-y.

ally expands the slit cone sleeve/8,50 as to,

"the conff1j9 canfbe shifted on the shaftA 1,' v n jg The action of' the.y clutch is as .follvovvs;'-.-v Movement of the cone 19 to the right; by the-lever 29, enables the spring 18 to move produce gradually increasing frictionv between the sleeve andthe cone 5.- `By this means a smooth, elastic butjiirml clutch ac#` tion is obtainedfbetween the vdriving and driven shafts. Another advantage v`of the arrangement isfthat thel springlS can be comparatively I"Weak, and the coupling memlbers lcomparatively small, quick and reliable f clutch action being nevertheless maintained.

The braking and stopping of the driving shaft is effected in an analogous mannen,y i the cone 19 beingmovedto the left by the lever 29,'Iand caused to gradually expand the slit sleeve 24, so as to produce gradually. increasing friction between the same and the cone 19,` wherebythe shaft 1 isfbraked. Simultaneously with this brake action the coupling between the driving and driven;

shafts is gradually interrupted, the cone 2 lbeing moved to ythe left and causing the friction between it and the sleeve S to gradually decrease and ultimately become nil when the movement of the cone 19 and its friction with the sleeve 24 have stopped the shaft 1. This counter clutch action not only simplifies the control, but gives increased security, because in disengagin'g the clutch while driving, an automatically graduated surrounded by the cone 21, 81k thev slit coupling sleeve, 91 the flange thereof, and 171 the lining of the cone 21. The cone 51 is integral with the pulley 41, and lies within,

the sleeve S1. The cone 21 surrounding the sleeve is integral with a cone 19 formed on the end of the shaft 11 and the latter can kbe axially moved by means of a clutch lever 291 pivoted at 281, and' engaging the`shaft between collars 271. The cone 191 is surrounded b v an internally coned ring 221 having a lining 231 and fixed to the frame 211,

and between thc ring and cone there is a slit sleeve 241, having a flange 251 with slots 261, through which pass bolts 25" engaging the sleeve with the ring. A spring 181 coiled around the shaft 11l thrusts the cone 21 against the sleeve S1, and the cone 191 *out of the sleeve 241.

In Fig. 3, 111 designates the driving shaft, 211 the cone fixed to same at the end, 311 the driven shaft, 411 the fiy-wheel, and 511 the cone surrounding the cone 211 and having a fiange G11 fixed by bolts 711 to the fly-Wheel; 811 is thel slit sleeve into which the cone 211, having an elastic cover 1711, is thrust by a spring 1811. A cone 1911 formed on the shaft 111 and having an elastic cover 2311 is engaged by bolts with a slit sleeve 2411 lying with an internally coned ring 2211-fixed to a frame part 2111. The sleeve 2411 is in part conical, to conform to the coincity of the ring and cone 1911, but has a short cylini drical extension 2411 across which the` slits 1311 extend. The shaft 111 is engaged at 2711. with a clutch lever 2911y pivoted at 2811,

braking of the driving shaft, with slits 13,

14, terminating in holes .15, 16 respectively,

arranged in the manner already described.K

The wall of the sleeve assumes in the course of coupling a curvature, as indicated bythe broken lines III-IV.

Fig. 6 shows a sleeve adapted to be used in connection with the clutch (Fig. 3) designated 811, also suitable for the driving clutch and brake, with slits 13b, 141 and holes 1511', 161. This sleeve has a cylindrical extension 241', and curves as indicated by the dotted lines within said figure.

What I claim as my invention and desire to secure by Letters lateiit of the United States is:-'

1. In a cone clutch the combination of a conical iii-ale clutch member, a conical female cllitcli member, and a conical sleeve intermediate of said male and female niembers, said sleeve having two series of substantially parallel slits the slits of each series extending from opposite ends of the sleeve,

and the two series overlapping each other on the sleeve. v In a cone clutch lthe combination of a conical inale clutch member, a conicalfemale clutch member, and a means interme-` diate of said male and female members for frictionally coupling both clutch members and having two series of substantially parallel slits, segments formed by said slits, each series of said slits extending from op posite ends of said means, and both series overlapping each other, said segments being adapted to be pressed into said female niember, substantially as described.

In witness whereof I have signed this specification in the presence of two witnesses.

ADOLF- LANZDORF.

Witnesses:

KARL Husum,- AUGUsT FUGGEii. 

